/Engine/Plugins/MovieScene/MovieRenderPipeline/Source/MovieRenderPipelineCore/Public/Graph/MovieGraphDataTypes.h
TickProducingFrames will be called for a frame (before the frame starts) and then this will be called at the end of the frame when we kick off the renders for the frame. Should return data needed to calculate the correct rendering timestep.
virtual [FMovieGraphTimeStepData](API\Plugins\MovieRenderPipelineCore\Graph\FMovieGraphTimeStepData) GetCalculatedTimeData() const